I see all the videos fine, and the embedding has been working for me today. Maybe it's a computer thing? I'm on a Mac and using Safari now, if that makes a difference. Maybe there was an update to explorer or firefox or whatever other browser you can't see it in?

"We shall not cease from exploration, and the end of all our exploring will be to arrive where we started and know the place for the first time." - T. S. Eliot